Material treating apparatus
CA 1069551 A · Owner: Bird Machine Company · Inventors: Packard, Thomas D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for treating lengthwise traveling material has a material driving member provided with alternating grooves and lands extending parallel to the direction of drive of the material presser means to press the material, against the lands and a retarder member downstream of the presser member for deflecting the material away from the driving member the retarder member having, an edge portion extending across the path of travel of the material provided with teeth extending into the driving member grooves with clearance from the groove walls, and intervening slots receiving therethrough the lands of the driving member with clearance from the slot walls. The construction avoids snagging of …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.